Radiative Calibration of Heat Flux Sensors at NIST: Facilities and Techniques.
Radiative Calibration of Heat Flux Sensors at NIST:
Facilities and Techniques.
Murthy, A. V.; Tsai, B. K.; Saunders, R. D.
NIST SP 971; August 2001.
NIST SP 971: "Collected Reports and Publications by the
National Institute of Standards and Technology on Heat
Flux Gage Calibration and Usage.", 2001.
Journal of Research of the National Institute of
Standards and Technology, Vol. 105, No. 2, 293-305,
Available from:For More Information on NIST SP 971 visit: WEBSITE:
heat flux; sensors; calibration; black body; irradiance;
An overview of the National Institute of Standards and
Technology (NIST) high temperature blackbodies, both in
operation and in development, suitable for heat flux
sensor calibration is presented. Typical results of
calibrations using the transfer technique in the 25-mm
Variable Temperature Blackbody (VTBB) are presented to
demonstrate the long-term repeatability of the
calibrations of a Gardon gage in a spherical blackbody
with cooled enclosure for gage housing was conducted.
Results of this study demonstrated the influence of
convection associated with absolute calibration of
sensors in a cooled-enclosure. Plans for further
development of the transfer technique to higher heat
flux levels and the associated technical issues are